I know this has been briefly touched on. Very little sparse research but it is all extremely exciting in affirming the powers of using DMSO for a solvent for herbs. Some is on horsies, but with a body that big I would think that to be stronger evidence, and some is on humans. Basically it is untapped. It is arguably the most organic solvent if sourced from the cells of trees. Trees very rarely get sprayed with chems.
I myself am a tincturing and extraction fanatic of medicinal herbs so to find a better source and cheaper (if you find the one for horsies) is monumental.
Here is a bit of info, a teaser so to speak...
[URL unfurl="true"]http://www.bulkmsm.com/research/msm/page13.htm[/URL]
To quote the most exciting sentence in here...
"Now DMSO is recognized as the most powerful and readily available organic solvent...because it will dissolve the greatest variety of substrates to the highest loading level."
Here is the cheapest for Horsies...
[URL unfurl="true"]http://www.bigdweb.com/INDUSTRIAL-SOLVENT-DMSO-GAL/productinfo/1150/[/URL]
And a high quality source...
[URL unfurl="true"]http://www.dmso.net/products.asp[/URL]